CVE-2005-1513: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 10.8% chance of exploitation in the next 30 days.

Integer overflow in the stralloc_readyplus function in qmail, when running on 64 bit platforms with a large amount of virtual memory, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large SMTP request.

Affected products

• Canonical Ubuntu Linux: version 20.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• Qmail Project Qmail: affected versions not specified

Published 2005-05-11. Last modified 2026-06-16.